#define _CRT_SECURE_NO_WARNINGS 1
#include<stdio.h>
int main()
{
	int a, b, c;
	while (scanf("%d %d %d", &a, &b, &c)) {
		if ((a + b > c) && (a + c > b) && (b + c > a)) {
			if (((a == b) && (b == c)) || ((a == c) & (c == b)) || ((b == c) && (c == a))) {
				printf("1");
			}
			else if (((a == b) && (b != c)) || ((a == c) && (c != b)) || ((b == c) && (c != a))) {
				printf("3");
			}
			else {
				printf("4");
			}
		}
		else {
			printf("2");
		}
	}
	return 0;
}